Playing With Numbers
The sum of a two–digit number and the number obtained by reversing
the digits is always divisible by __________.
Playing With Numbers
3×5 is divisible by 9 if the digit x is __________.
Playing With Numbers
20×3 is a multiple of 3 if the digit x is ______ or ______ or ______.
Playing With Numbers
3134673 is divisible by 3 and ______.
Playing With Numbers
Which of the following numbers is divisible by 99
(a) 913462 (b) 114345 (c) 135792 (d) 3572406
Playing With Numbers
If 6 A × B = A 8 B, then the value of A – B is
(a) –2 (b) 2 (c) –3 (d) 3
Playing With Numbers
If 5 A × A = 399, then the value of A is
(a) 3 (b) 6 (c) 7 (d) 9
Playing With Numbers
If A 3 + 8 B = 150, then the value of A + B is
(a) 13 (b) 12 (c) 17 (d) 15
Playing With Numbers
If 5 A + B 3 = 65, then the value of A and B is
(a) A = 2, B = 3 (b) A = 3, B = 2
(c) A = 2, B = 1 (d) A = 1, B = 2
Playing With Numbers
If 5 A + B 3 = 65, then the value of A and B is
(a) A = 2, B = 3 (b) A = 3, B = 2
(c) A = 2, B = 1 (d) A = 1, B = 2
